Acquisitions - Acquisitions Narrative (Details) - USD ($) $ in Millions			3 Months Ended	5 Months Ended	6 Months Ended
	Feb. 01, 2023	Feb. 02, 2022	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill			$ 2,919.3	$ 2,919.3	$ 2,919.3	$ 2,174.5
Food
Business Acquisition [Line Items]
Goodwill			1,264.8	1,264.8	1,264.8	$ 523.2
Liquibox
Business Acquisition [Line Items]
Percentage of shares acquired	100.00%
Acquisition purchase price paid	$ 1,169.2			1,169.2
Acquisition related costs			0.1		12.0
Goodwill	728.7		730.2	730.2	730.2
Allocation to deferred tax liability	$ 92.2		92.2	92.2	92.2
Foxpak Flexibles Ltd.
Business Acquisition [Line Items]
Acquisition purchase price paid		$ 9.7
Goodwill		5.2
Allocation to intangible assets		2.7
Allocation to deferred tax liability		$ 0.3
Series of Individually Immaterial Business Acquisitions | Food
Business Acquisition [Line Items]
Acquisition purchase price paid			15.1
Goodwill			$ 8.0	$ 8.0	$ 8.0